diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index c1ddb5a09d..a56e0f5d16 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -13215,7 +13215,7 @@ virDomainMemoryDefParseXML(xmlNodePtr memdevNode,
         goto error;
     }
 
-    if ((def->model = virDomainMemoryModelTypeFromString(tmp)) < 0) {
+    if ((def->model = virDomainMemoryModelTypeFromString(tmp)) <= 0) {
         virReportError(VIR_ERR_XML_ERROR,
                        _("invalid memory model '%s'"), tmp);
         goto error;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index c4da8b594a..5325f48dbb 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3397,8 +3397,6 @@ qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem)
 
     case VIR_DOMAIN_MEMORY_MODEL_NONE:
     case VIR_DOMAIN_MEMORY_MODEL_LAST:
-        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                       _("invalid memory device type"));
         break;
 
     }
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index b3ca993f43..9b439df3b3 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -5183,8 +5183,6 @@ qemuDomainDefValidateMemoryHotplugDevice(const virDomainMemoryDef *mem,
 
     case VIR_DOMAIN_MEMORY_MODEL_NONE:
     case VIR_DOMAIN_MEMORY_MODEL_LAST:
-        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                       _("invalid memory device type"));
         return -1;
     }